The Pittsburgh Penguins' Chris Kunitz (14) collides with the Islanders' Blake Comeau (57) during the second period last night. Photo: AP

The Islanders have three goaltenders on their roster, but the team is still waiting for one of them to establish himself as the clear No. 1. The dilemma hasn’t been helped by the fact the two goalies who have started — Evgeni Nabokov and Al Montoya — have played well, even though the Islanders’ watched their losing streak stretch to three after last night’s 3-0 blanking by the Penguins at Nassau Coliseum.

Nabokov started his second straight game — and third in the past four — and was beaten twice on 28 shots. He had been 8-1 in his career against the Penguins, and despite the loss, received praise from Islanders coach Jack Capuano.

“I thought [Nabokov] gave us a chance,” Capuano said. “He was big in the third period … he made some big saves. He gave us a chance to win the game.”

The Islanders face the Penguins again tomorrow night in Pittsburgh, and one of the other two goalies — Montoya or Rick DiPietro — could get the start.

Montoya’s last appearance was last Thursday, when he allowed all the goals in a 4-1 loss to the Lightning. DiPietro has yet to start a game this young season.

“I think we just have to relax, that’s the most important thing,” Nabokov said after surrendering goals to Pascal Dupuis and Richard Park before an empty-net score by Jordal Staal.

“It’s not an easy league to play in, but we have to continue to put in 100-percent effort every single night.”

“I think tonight was the best in the past few games, where we generated scoring chances, but we have to find a way to get a few more in the net,” Tavares said.

“Fleury played well, but you need to just get hungrier around the net. Sometimes it takes an ugly one.”